Home / 907,281.17-1,252,038.14-499,374.28

Finding the Fourth Proportional to 907,281.17, 1,252,038.14 and 499,374.28

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Solution

The fourth proportional to 907,281.17, 1,252,038.14 and 499,374.28 is: 689,131.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,281.17 : 1,252,038.14 = 499,374.28 : x
  2. Step 2: Convert to fraction form
    907,281.17/1,252,038.14 = 499,374.28/x
  3. Step 3: Cross multiply
    907,281.17x = 1,252,038.14 × 499,374.28
  4. Step 4: Simplify right side
    907,281.17x = 625,235,638,434.85
  5. Step 5: Solve for x
    x = 625,235,638,434.85/907,281.17
  6. Step 6: Final answer
    x = 689,131.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.